NHK reported the full study of Prof. Watanabe, which Yomiuri newspaper missed.
The researching group of Prof. Watanabe assumes the radioactive particles circulate the world taking 40 days.

They measured 0.0048 Bq/m3 of cesium in May 2011, but it was 0.0007 Bq/m3 this March.
The radioactive particles travel around the world and fall off to the ground to decrease its concentration.

Prof. Watanabe comments, they can trace how radioactive particles spread over the world and how to affect each country on its path.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Tag Cloud

%d bloggers like this: